关于非对易时空中幂律暴胀的注记
Note on Power-Law Inflation in Noncommutative Space-Time
摘要：
本文提出了一种计算非对易幂律暴胀模型中模函数的新方法。在这个模型中，满足弦时空不确定性关系时产生的所有模式都是在暴胀期间在哈勃视界内产生的。结果表明，描述非对易时空效应的线性项对标量和张量扰动的功率谱有贡献。将该模型与\textit{Planck}和BICEP 2的最新结果进行比较，我们对模型中的参数进行了约束，发现它与观测值吻合得很好。
英文摘要：
In this paper, we propose a new method to calculate the mode functions in the noncommutative power-law inflation model. In this model, all the modes created when the stringy space-time uncertainty relation is satisfied are generated inside the Hubble horizon during inflation. It turns out that a linear term describing the noncommutative space-time effect contributes to the power spectra of the scalar and tensor perturbations. Confronting this model with latest results from \textit{Planck} and BICEP2, we constrain the parameters in this model and we find it is well consistent with observations.
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